Răspuns :
Răspuns:
d) 2(x+8)≤-10
2x+16≤-10
2x≤-10-16
2x≤-26
x≤-26:2
x≤-13
e) 5(x-1)<0
5x-5<0
5x<0+5
5x<5
x<5:5
x<1
f)2(x+5)+3<-9
2x+10+3<-9
2x+13<-9
2x<-9-13
2x<-22
x<-22:2= -11
i) 5(2+3x)<-5
10+15x<-5
15x<-5-10
15x<-15
x<-15:15
x<-1
Explicație pas cu pas: